add before and after templates for JUnit4
add assertion templates
Proper handling of extra compiler args.
update the project importing set.
Merge pull request #5 from taichi/junit4-templates

Thanks for the pull request. Looks good to me.  This will not make it into the 2.8.0 build, but will be in the next snapshot build of 2.9.0 available tomorrow.

add code templates for testing
GRECLIPSE-1659 Deduplication of compiler arguments